Webb1- Simplify the following expression. 3 5 4 7(3 2 ) ?xx > @ a) 27 45x b) 33 45x c) 67 85x d) 27 45x e) 67 85x 2- Evaluate 2 , if 2, 1x y xy x y2 3 2. a) 10 b) 18 c) -6 d) -14 e) 50 3- Jenny types 150 pages in 5 hours. If Mary helps Jenny, it takes 2 hours to type 150 pages. How long would it take Mary to type 150 pages alone? WebbFree Pre-Algebra, Algebra, Trigonometry, Calculus, Geometry, Statistics and Chemistry calculators step-by-step
Simplifying expressions using the laws of indices - BBC Bitesize
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Boolean Algebra Calculator - eMathHelp
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